EP4038130A1 - Composite polymer film and use thereof in a spacecraft - Google Patents
Composite polymer film and use thereof in a spacecraftInfo
- Publication number
- EP4038130A1 EP4038130A1 EP21819876.0A EP21819876A EP4038130A1 EP 4038130 A1 EP4038130 A1 EP 4038130A1 EP 21819876 A EP21819876 A EP 21819876A EP 4038130 A1 EP4038130 A1 EP 4038130A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- polymer film
- composite polymer
- composite
- content
- ether
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 84
- 229920006254 polymer film Polymers 0.000 title claims abstract description 84
- 229920000642 polymer Polymers 0.000 claims abstract description 52
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000006229 carbon black Substances 0.000 claims abstract description 36
- 239000000945 filler Substances 0.000 claims abstract description 36
- 239000000203 mixture Substances 0.000 claims abstract description 31
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 27
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 27
- 239000011159 matrix material Substances 0.000 claims abstract description 19
- 230000003287 optical effect Effects 0.000 claims abstract description 17
- 238000009413 insulation Methods 0.000 claims abstract description 9
- 229920006260 polyaryletherketone Polymers 0.000 claims abstract description 9
- -1 isophthaloyl Chemical group 0.000 claims description 10
- 239000000178 monomer Substances 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 5
- 238000003490 calendering Methods 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 5
- 229920002530 polyetherether ketone Polymers 0.000 claims description 5
- 238000001033 granulometry Methods 0.000 claims description 4
- 150000002576 ketones Chemical class 0.000 claims 1
- 229920001643 poly(ether ketone) Polymers 0.000 claims 1
- 230000005855 radiation Effects 0.000 description 9
- 229910052799 carbon Inorganic materials 0.000 description 7
- 239000008187 granular material Substances 0.000 description 6
- 229910021389 graphene Inorganic materials 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000003071 parasitic effect Effects 0.000 description 4
- 230000003595 spectral effect Effects 0.000 description 4
- 229920012741 Kepstan® 7003 Polymers 0.000 description 3
- 239000004594 Masterbatch (MB) Substances 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 229920001169 thermoplastic Polymers 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 239000002134 carbon nanofiber Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000011164 primary particle Substances 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000001878 Bakers yeast glycan Substances 0.000 description 1
- 229920011672 Kepstan® 6004 Polymers 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000007970 homogeneous dispersion Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 239000002048 multi walled nanotube Substances 0.000 description 1
- 239000002071 nanotube Substances 0.000 description 1
- 229920001652 poly(etherketoneketone) Polymers 0.000 description 1
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004626 scanning electron microscopy Methods 0.000 description 1
- 238000001350 scanning transmission electron microscopy Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000004627 transmission electron microscopy Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 238000001392 ultraviolet--visible--near infrared spectroscopy Methods 0.000 description 1
- 238000001429 visible spectrum Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2371/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
Definitions
- the present invention falls within the field of materials used in space vehicles.
- the present invention relates to the use, in a space vehicle, of a composite polymer film based on a carbonaceous filler dispersed in a polymer matrix, as well as a composite polymer film intended for such use and a vehicle space containing such a composite polymer film.
- Space vehicles in particular satellites, are subjected in operation in space to extremely restrictive conditions which require, in particular to ensure the proper functioning of the instruments they transport, very specific properties both optically and thermal plane for some of the elements that constitute them.
- these properties aim in particular to obtain, on the one hand, the greatest possible reduction of parasitic optical radiation liable to disturb the operation of the equipment, and, on the other hand, the best possible passive thermal control within from the satellite.
- Some of the components used in satellites must therefore be specifically designed to participate in obtaining such optical and/or thermal performance.
- these performances are ensured by implementation, at various places of the satellite, in particular as a surface layer of the thermal insulation blankets or as an optical instrument baffle, of colored flexible polyimide films black in the mass, having both all of the following characteristics: a high capacity for absorption or a very low capacity for reflection of parasitic radiation and solar radiation, so as to ensure that the intensity of the parasitic radiation and reflected solar radiation is very low, and a high infrared (IR) emissivity allowing a high level of energy exchange by radiation.
- IR infrared
- films known as black polymer films
- Kapton® Black type XC or CB the films marketed by the company Dupont de Nemours under the name Kapton® Black type XC or CB.
- These films have a level of optical and thermal performance particularly suited to the requirements of the space domain, in particular a spectral reflection R, in the visible spectrum and in the near infrared, more particularly in the interval from 380 to 1680 nm, of less than 9%.
- an absorptivity of solar radiation cc s greater than 0.93 and a normal emissivity £n greater than 0.84.
- the present invention aims to propose an alternative solution to the black polymer films proposed by the prior art, by proposing a polymer film having properties of spectral reflection, absorptivity of solar radiation and emissivity as good, or even better, than those indicated above. , and which can be used within a space vehicle as a replacement for these films of the prior art in order to contribute to the passive and optical thermal control of the space vehicle.
- This film is light, easy to manufacture and easy to handle, and that it is of course resistant to the temperatures to which it is likely to be subjected in space.
- the invention relates to the use, in a space vehicle, in particular in a satellite, of a composite polymer film formed from a polymer matrix comprising a thermoplastic polymer chosen from polyaryletherketones (PAEK), matrix in which is dispersed, in a substantially homogeneous manner, a carbonaceous filler chosen from:
- a thermoplastic polymer chosen from polyaryletherketones (PAEK)
- PAEK polyaryletherketones
- the nanometric carbon black which is then present in the composite polymer film in a second content of between 5 and 30% by weight relative to the total weight of the composite polymer film
- the content of the carbon nanotubes in the composite polymer film is a proportion of said first content which is equal to the proportion of carbon nanotubes in the mixture
- the content of nanoscale carbon black in the composite polymer film is a proportion of said second content which is equal to the proportion of nanometric carbon black in the mixture.
- the carbonaceous filler is a mixture containing 60% by weight of carbon nanotubes and 40% by weight of nanometric carbon black
- the content of carbon nanotubes in the composite polymer film will be fixed to 60% of said first content (between 0.5 and 10% by weight), and the content of nanometric carbon black in the composite polymer film will be set at 40% of said second content (between 5 and 30% by weight).
- the carbonaceous filler consists either solely of carbon nanotubes, or of a mixture of nanometric carbon black and carbon nanotubes, the nanometric carbon black possibly be a large majority in this mix.
- the carbon nanotubes and the nanometric carbon black are the only carbon fillers present in the composite polymer film.
- the composite polymer film may otherwise contain, as carbon filler, carbon nanofibers, alone or mixed with carbon nanotubes and/or nanometric carbon black.
- the carbon nanofibers when they are there alone, can be present in the composite polymer film in a content of between 0.5 and 30% by weight relative to the total weight of the composite polymer film, preferably between 1 and 20% , more preferably between 5 and 15%, by weight relative to the total weight of the composite polymer film.
- Carbon black is a product obtained industrially by thermal decomposition or by incomplete combustion of carbon-hydrogen compounds. It is classically presented in the form of particles of well-defined morphology at low impurity content.
- nanometric carbon black is meant in the present description carbon black consisting of primary particles of which at least one dimension is nanometric, that is to say between 0.1 and 100 nm. The dimensions of these particles can be measured by laser granulometry, scanning electron microscopy or transmission electron microscopy, with morphological analysis.
- the carbon black black particles used according to the invention can be in the form of agglomerates.
- nanometric carbon black that can be used according to the invention, mention may be made in particular of the product marketed under the name Printex® 80 by the company Orion Engineered Carbons.
- the nanometric carbon black used in the composite polymer film of the invention consists of primary particles of which at least one dimension, measured by laser granulometry, is less than or equal to 20 nm, and more particularly between 0, 1 and 20 nm.
- Carbon nanotubes are hollow tubular carbon structures composed of one or more sheets of carbon atoms rolled up on themselves. Carbon nanotubes typically have an average diameter between 0.4 and 100 nm. Preferably, the carbon nanotubes used according to the invention have an average diameter less than or equal to 20 nm, preferably between 10 and 15 nm, this diameter being able to be measured by laser granulometry or transmission electron microscopy.
- the carbon nanotubes implemented according to the invention can be both single-walled and multi-walled.
- carbon nanotubes that can be used according to the invention, mention may be made of the product marketed by the company Arkema under the name Graphistrength® C100.
- the carbonaceous filler whether carbon nanotubes or nanometric carbon black, preferably consists of particles of which at least one dimension is between 10 and 15 nm.
- the composite polymer film corresponding to the composition recommended according to the invention is opaque, colored black in the mass, and it advantageously has optical and thermal performances which make it quite suitable for use within a vehicle intended to be operated in space. In particular, it has a spectral reflection R of less than 9% in the interval from 380 to 1680 nm, an absorptivity of solar radiation cc s greater than 0.93 and a normal emissivity £n greater than 0.84.
- the composite polymer film used according to the invention preferably has a thickness of between 25 and 80 ⁇ m, for example a thickness of 25 ⁇ m, 40 ⁇ m or 80 ⁇ m.
- This thickness is advantageously in line with the thickness requirements for the black polymer films used in space vehicles.
- the film is flexible, light, with a density of about 1.3 to 1.4, and it has very good properties, at least as good as those of the black polymer films offered by the prior art for this application, and this in a very wide temperature range, in particular thanks to the characteristics of the materials which constitute it, in particular of the polymer chosen from the particular family of PAEKs.
- the content of carbon filler in the composite polymer film is chosen to be as low as possible, while ensuring the targeted optical and thermal properties, so as to facilitate its manufacture.
- the carbon nanotubes in particular when they constitute the only carbonaceous filler dispersed in the polymer matrix, are preferably contained in the polymer composite film in a content of between 0.5 and 5%, preferably between 0.5 and 3%, more preferably between 1 and 3%, preferably between 1.5 and 3%, and more preferably between 2 and 3%, by weight relative to the total weight of the polymer composite film. They may otherwise be contained in the polymer composite film in a content of between 0.5 and 10% by weight relative to the total weight of the polymer composite film.
- the content of nanometric carbon black in the composite polymer film is for its part preferably between 5 and 20%, more preferably between 5 and 10%, by weight relative to the total weight of the composite polymer film.
- the narrower the ranges of content indicated above the better the compromise obtained between optical and thermal properties targeted on the one hand, and weight/thickness of the composite polymer film on the other hand.
- the invention may also respond to one or more of the characteristics described below, implemented in isolation or in each of their technically effective combinations.
- the matrix can be formed from a single polymer, or from a mixture of polymers, each being preferably chosen from polyaryletherketones.
- the polymer included in the matrix is chosen from poly-ether-ether-ketones (PEEK), poly-ether-ketone-ketones (PEKK), poly-ether -ether-ketone-ketones (PEEKK), poly-ether-ketones (PEK) and poly-ether-ketone-ether-ketone-ketones (PEKEKK), or any mixture thereof.
- the polymer matrix preferably comprises, and preferably consists of, a poly-ether-ketone-ketone (PEKK) and/or a poly-ether-ether-ketone PEEK.
- PEKK poly-ether-ketone-ketone
- PEEK poly-ether-ether-ketone
- the polymer included in the matrix is a poly-ether-ketone-ketone with terephthaloyl monomer units and isophthaloyl monomer units.
- this polymer is then such that the ratio (T/l) between the terephthaloyl fractions and the isophthaloyl fractions used during its synthesis is equal to 70/30.
- Such polymers, of semi-crystalline structure, advantageously have good processability, in particular by conventional extrusion techniques.
- polymers examples include those of the 7000 series marketed under the name Kepstan® by the company Arkema.
- the matrix is formed from several polymers, a mixture of different PEKKs, preferably each containing terephthaloyl monomer units and isophthaloyl monomer units, is particularly preferred.
- the polymer matrix of the composite polymer film used according to the invention can thus for example, in particularly preferred embodiments, be formed of two poly-ether-ketone-ketones with terephthaloyl monomer units and isophthaloyl monomer units, whose T/ l between terephthaloyl fractions and isophthaloyl fractions are different.
- a mixture of such polymers, having respectively T/l ratios of 70/30 and 60/40, can for example be used according to the invention.
- the composite film contains at least 55% by weight, relative to the total weight of the composite polymer film, of PEKK with terephthaloyl monomer units and isophthaloyl monomer units with a ratio T/ l equal to 70/30.
- the composite polymer film used according to the invention may contain one or more additives, preferably in an amount less than or equal to 1% by weight relative to the total weight of the composite polymer film.
- additives can for example be chosen from electrically conductive or thermally conductive metallic fillers, etc.
- the composite polymer film according to the invention can be obtained by any conventional method per se.
- thermopressing a mixture of the polymer and the carbonaceous filler.
- the composite polymer film is obtained by a process comprising a step of extruding a mixture of the polymer and the carbonaceous filler and a step of calendering the material obtained from the end of this extrusion step.
- the method may comprise a prior step of mixing, for example in an extruder, in particular a co-rotating twin-screw extruder, of the filler carbonaceous with a first quantity of polymer, so as to form composite granules by compounding, which are mixed with the remaining quantity of polymer during the extrusion stage of the process.
- This extrusion step can be carried out in any way and by means of any device known to those skilled in the art. It falls within the competence of the latter to determine the operating parameters, in particular the heating temperature profile to be applied, specifically for each given polymer / mixture of polymers.
- the calendering step can be carried out in any conventional manner per se.
- This calendering step can be followed by a step of stretching/filming the material, to form a film of the desired thickness.
- the composite polymer film can, if necessary, then be subjected to a stripping step, then optionally to winding to present it in the form of a coil at the desired width.
- the composite polymer film can be implemented in the spacecraft in different ways, and at different components.
- It can either form a layer, in particular a surface layer, of a multilayer element, or constitute in itself a monolayer element, if necessary assembled on a mechanical structure.
- the composite polymer film can for example be glued in the form of patches on a surface of the spacecraft, to make this surface locally black.
- the polymer composite film forms an outer layer of a multilayer insulation element of the space vehicle, in particular of a thermal insulation blanket, also called insulating blanket or thermal insulation.
- multilayer multilayer (MLI, for English MultiLayer Insulation). Its optical and thermal properties in particular advantageously avoid parasitic solar reflections which are liable to create hot spots and/or to disturb optical measuring instruments.
- the composite polymer film constitutes, in the form of a monolayer, a baffle of an instrument space vehicle optics.
- the invention relates to a space vehicle, in particular a satellite, containing a composite polymer film, preferably between 25 and 80 ⁇ m thick, formed from a polymer matrix comprising a thermoplastic polymer chosen from polyaryletherketones , matrix in which is dispersed a carbonaceous filler chosen from:
- the nanometric carbon black which is then present in the composite polymer film in a second content of between 5 and 30% by weight relative to the total weight of the composite polymer film
- This composite polymer film may respond to one or more, according to any combination, of the characteristics relating to the composite polymer film described above with reference to the use according to the invention.
- This composite polymer film is particularly suitable for use, as a black polymer film with high optical and thermal performance, in a space vehicle.
- This film can for example constitute an outer layer of a thermal insulation blanket formed of a plurality of layers of polymer sheets, these sheets being for example formed based on polyester, polyimide or polyaryletherketone. It can also constitute a baffle of an optical instrument of the space vehicle.
- Graphistrength® C100 powder of agglomerates of multi-walled nanotubes (about 12 walls), length of about 1 ⁇ m and diameter of about 12 nm;
- Printex® 80 average particle size 16 nm, BET 225 m 2 /g
- non-nanometric carbon black “glassy” carbon black in the form of spherical Sigma-Aldrich particles (particle diameter between 2 and 12 ⁇ m);
- Av-Plat-40 (Avanzare Innovacion Tecnologica) (size 40 ⁇ m, thickness 10 nm, number of layers less than 30, BET 22 m 2 /g).
- the polymer(s) in the form of granules and the carbonaceous filler are mixed, in the respective proportions indicated in Table 1 below, in a co-rotating twin-screw extruder, at a temperature between 330 and 380 °C, so as to form a masterbatch in the form of granules 5 mm long and 3 mm in diameter.
- Films are formed from these granules in a heating press, at a pressure of 10 to 15 bars.
- the heating temperature is between 360 and 375° C., it is maintained for a period of 10 min.
- Different film thicknesses, between 30 and 100 ⁇ m, are produced.
- the films formed are then cooled in air at 22° C./min.
- the process differs in its first steps: the carbon filler is mixed with the polymer in the form of granules in an ethanol bath, under ultrasound, then the ethanol is removed by evaporation using a rotary evaporator, and the homogeneous powder mixture thus obtained is subjected to the treatment with a heating press described above -before, to get the targeted movies.
- the thickness of the films is measured using a micrometer
- the solar absorptivity as is measured with a portable reflectometer SOC 410-SOLAR fitted with a tungsten filament (source) and an integrating sphere.
- the measurement is performed in the wavelength range between 330 and 2500 nm, at an angle of incidence of 20°;
- the normal emissivity s n is measured with a portable emissometer-reflectometer TEMP 2000A in the wavelength range between 3 and 30 ⁇ m, in accordance with standard ASTM E408;
- the spectral reflection R is measured using a UV-VIS-NIR spectrophotometer equipped with an integrating sphere, between 380 and 1680 nm, with a measurement interval of 1 nm.
- Table 1 indicates the characteristics obtained for each of the films formed based on carbon nanotubes. The various proportions of the constituents of the films are indicated therein in % by weight, relative to the total weight of the film.
- Table 1 Table 2 below indicates the characteristics obtained for each of the films formed based on nanometric carbon black. The various proportions of the constituents of the films are indicated therein in % by weight, relative to the total weight of the film.
- Films A and B the composition of which is in accordance with that recommended by the invention, have properties of solar absorptivity and normal emissivity entirely compatible with use as a black polymer film in a space vehicle.
- composite polymer films have been prepared using other types of carbonaceous filler:
- non-nanometric carbon black (83.4% w/w of Kepstan® 7003 and 16.6% w/w of non-nanometric carbon black);
- films in accordance with the invention are manufactured by an industrial process, from the same raw materials as described in example 1.
- a masterbatch containing the carbonaceous filler and part of the polymer, in the form of granules 5 mm long and 3 mm in diameter, is first prepared by compounding in a twin-screw extruder co -rotary (master mix at approx.
- the masterbatch thus obtained is then mixed with the remaining quantity of polymer, then the mixture is subjected to extrusion-calendering, to form a web which is then subjected to the following successive steps: stretching to form a film of the desired thickness (in this example, three thicknesses:
- compositions of the various films formed are indicated in Table 3 below.
- the various proportions of the constituents of the films are indicated in% by weight, relative to the total weight of the film.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2012557A FR3116821B1 (en) | 2020-12-02 | 2020-12-02 | POLYMER COMPOSITE FILM AND ITS USE IN A SPACE VEHICLE |
PCT/EP2021/083653 WO2022117593A1 (en) | 2020-12-02 | 2021-11-30 | Composite polymer film and use thereof in a spacecraft |
Publications (3)
Publication Number | Publication Date |
---|---|
EP4038130A1 true EP4038130A1 (en) | 2022-08-10 |
EP4038130C0 EP4038130C0 (en) | 2023-06-07 |
EP4038130B1 EP4038130B1 (en) | 2023-06-07 |
Family
ID=75278106
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21819876.0A Active EP4038130B1 (en) | 2020-12-02 | 2021-11-30 | Composite polymer film and use thereof in a spacecraft |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP4038130B1 (en) |
FR (1) | FR3116821B1 (en) |
WO (1) | WO2022117593A1 (en) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4563665B2 (en) * | 2003-10-06 | 2010-10-13 | 株式会社クレハ | Semiconductive film, charge control member, and method for producing semiconductive film |
WO2008003659A1 (en) * | 2006-07-07 | 2008-01-10 | Solvay Advanced Polymers, L.L.C. | Polymer composition suitable for electrostatic discharge applications |
TW201219447A (en) * | 2010-10-12 | 2012-05-16 | Solvay | Polymer compositions comprising poly(arylether ketone)s and graphene materials |
EP2734580B1 (en) * | 2011-07-21 | 2018-10-03 | Entegris, Inc. | Nanotube and finely milled carbon fiber polymer composite compositions and methods of making |
FR3067962B1 (en) * | 2017-06-22 | 2020-11-06 | Arkema France | METHOD OF MANUFACTURING A FIBROUS MATERIAL IMPREGNATED WITH THERMOPLASTIC POLYMER |
FR3077578B1 (en) * | 2018-02-05 | 2020-01-10 | Arkema France | MIXTURES OF POLYARYLETHERCETONES HAVING IMPROVED SHOCK RESISTANCE, ELONGATION AT BREAK AND FLEXIBILITY |
-
2020
- 2020-12-02 FR FR2012557A patent/FR3116821B1/en active Active
-
2021
- 2021-11-30 EP EP21819876.0A patent/EP4038130B1/en active Active
- 2021-11-30 WO PCT/EP2021/083653 patent/WO2022117593A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
WO2022117593A1 (en) | 2022-06-09 |
FR3116821A1 (en) | 2022-06-03 |
EP4038130C0 (en) | 2023-06-07 |
EP4038130B1 (en) | 2023-06-07 |
FR3116821B1 (en) | 2023-12-01 |
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